head 1.4; access; symbols RPM_4_2_1:1.1.1.1 RPM_4_2:1.1.1.1 RPM_4_1_1:1.1.1.1 RPM_4_0_5:1.1.1.1 RPM:1.1.1; locks; strict; comment @# @; 1.4 date 2008.01.02.09.52.49; author rse; state dead; branches; next 1.3; commitid z4cpSiAhOCXk5PLs; 1.3 date 2003.08.24.12.43.08; author rse; state Exp; branches; next 1.2; 1.2 date 2003.08.24.12.33.43; author rse; state dead; branches; next 1.1; 1.1 date 2002.09.19.20.34.00; author rse; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 2002.09.19.20.34.00; author rse; state Exp; branches; next ; desc @@ 1.4 log @remove the ancient RPM 4.2.1 source tree copy @ text @ Berkeley DB: DB->set_cache_priority

DB->set_cache_priority

#include <db.h> int DB->set_cache_priority(DB *db, DB_CACHE_PRIORITY priority); Description Set the cache priority for pages from the specified database. The priority of a page biases the replacement algorithm to be more or less likely to discard a page when space is needed in the buffer pool. The bias is temporary, and pages will eventually be discarded if they are not referenced again. The DB->set_cache_priority interface is only advisory, and does not guarantee pages will be treated in a specific way. The priority argument must be set to one of the following values: DB_PRIORITY_VERY_LOW The lowest priority: pages are the most likely to be discarded. DB_PRIORITY_LOW The next lowest priority. DB_PRIORITY_DEFAULT The default priority. DB_PRIORITY_HIGH The next highest priority. DB_PRIORITY_VERY_HIGH The highest priority: pages are the least likely to be discarded. The DB->set_cache_priority method configures a database, not only operations performed using the specified DB handle. The DB->set_cache_priority interface may be called at any time during the life of the application. The DB->set_cache_priority method returns a non-zero error value on failure and 0 on success. Errors The DB->set_cache_priority method may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions. If a catastrophic error has occurred, the DB->set_cache_priority method may fail and return DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way. Class DB See Also Databases and Related Methods

Copyright Sleepycat Software @ 1.3 log @Resolve: RPM 4.1 -> RPM 4.1.1 @ text @@ 1.2 log @Resolve: RPM 4.0.5 -> RPM 4.1 @ text @@ 1.1 log @Initial revision @ text @@ 1.1.1.1 log @Import: RPM 4.0.5 @ text @@